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Area code 408
Area codes 408 and 669 are telephonearea codes in the North American Numbering Plan (NANP) in the U.S. state of California.
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Explore relationships
Area codes 408 and 669 are telephonearea codes in the North American Numbering Plan (NANP) in the U.S. state of California.
Use + to expand a branch. Click a topic name to open its summary.